http://thescotsman.scotsman.com/latestnews/Exclusive-Half-man-half-chimp.4028970.jp

Quote
A LEADING scientist has warned a new species of "humanzee," created from breeding apes with humans, could become a reality unless the government acts to stop scientists experimenting.
In an interview with The Scotsman, Dr Calum MacKellar, director of research at the Scottish Council on Human Bioethics, warned the controversial draft Human Fertilisation and Embryology Bill did not prevent human sperm being inseminated into animals.
The loophole doesn't look like a very convincing "accident", if you ask me.

Things may not be quite so simple as they think, however. I had a hunch the germs would differ substantially, and started googling.

http://www.robolase.ucsd.edu/movies.html

Quote
This movie in comparison to the next movie shows the extreme difference between sperm from multi-partner mating primates (chimp sperm, fast and strong) and single partner mating primates (gorilla sperm, slow and weak).


Also
http://www.biolreprod.org/content/32/2/399.abstract?ck=nck
Quote
These data show that chimpanzee sperm undergo extensive surface modifications during epididymal maturation and that some of these modifications may be related to exogenous proteins/glycoproteins in epididymal fluids


Somehow I lost interest in researching further. I doubt any difference of this type between humans and chimps could be a scale-tipping factor for the deluded. Just look at how many obvious differences everyone already sees.

Dark Matter + Dark Energy = Dark Truth

"We find that such evidence demonstrates that the ID argument is dependent upon setting a scientifically unreasonable burden of proof for the theory of evolution." - Judge Jones Kitzmiller case
http://www.talkreason.org/articles/Falsify.cfm

"To Compel A Man To Furnish Funds For The Propagation Of Ideas He Disbelieves And Abhors Is Sinful And Tyrannical." - Thomas Jefferson

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God? That they are not to be violated but with his wrath?" - Thomas Jefferson